Camptosphaeria sulphurea Fuckel, Jb. nas- sau. Ver. Naturk. 23-24: 140 (1870) [1869-70]

MycoBank number: MB 154259; Index Fungorum number: IF 154259; Facesoffungi number: FoF 10038; Fig. 55

Saprobic on stems. Sexual morph: Ascomata 520–650 × 400–450 µm (x̄ = 560 × 420 µm, n = 5), perithe- cial, scattered, semi-immersed, erumpent through bark of host, pyriform to subglobose, black, ostiolate, with papilla, periphysate. Peridium 20–50 µm (x̄ = 30 µm, n = 30) wide, membranaceous, comprising two layers, outer layer com- posed of brown cells of textura angularis; inner layer composed of hyaline cells of textura prismatica. Paraphyses filiform. Asci (130–)140–170(–180) × 12–25 µm (x̄= 150 × 18 µm, n = 30), 8-spored, unitunicate, cylindrical, pedicellate, apex rounded, with apical globule. Ascospores (25–)28–30(–35) × 10–15 µm (x̄ = 30 × 13 µm, n = 30), biseriate, cylindrical to broadly clavate to obpyriform, aseptate, hyaline to pale brown, smooth-walled, with conical gelatinous appendage at the apex. Asexual morph: Undetermined (adapted from Fuckel 1870; Lundqvist 1972).

Material examined: Germany, Hessen, Nessen, Östrich, on stems of Peucedanum officinale, 1894, L. Fuckel (G-318793/1, holotype).

Known hosts and distribution: On stems of Peucedanum in Germany (type locality) (Fuckel 1870).

Notes: Fuckel (1870) introduced Camptosphaeria sulphurea with pod-like ascospores having conical gelatinous appendages. We re-examined the holotype (318793/1) which was determined by Lundqvist. Complete asci and ascospores were not observed, so we drew them with reference to Fuckel (1870) and Lundqvist (1972).

Fig. 55 Camptosphaeria sulphurea: a–i (G-318793/1, holotype); j–k (redrawn from Fuckel 1870 and Lundqvist 1972). a Herbarium material label. b Herbarium material. c Ascomata on host. d Ascoma in cross section. e Crushed papilla with periphyses. f Peridium. g–j Asci. k Ascospores. Scale bars: d = 200 µm, e = 100 µm, f–k = 50 µm